700R4 4X4

Gearstar builds the 700R4 4x4 performance transmission for off-road trucks, mud rigs, and trail vehicles that need strong torque control and smooth shifting under heavy stress. When you move to bigger mud tires that add extra load to your drivetrain, or upgrade from stock to serious off-road use, Gearstar’s 4x4 700R4 gives you the strength that stock transmissions can’t handle.

This non-computer-controlled transmission works with Big Block and Small Block Chevrolet engines, as well as LT engines, and uses a TV cable system. Carburetor setups may require a TV cable corrector kit.

Available 700R4 4x4 Performance Build Levels

Gearstar offers multiple 700R4 4x4 transmission build levels designed to match different power levels, torque ratings, and driving applications.

Level 2 – 400 HP, 375 lb-ft torque

Level 2 is perfect for your off-road rig when you want reliable torque management and smooth trail shifting. This build handles up to 400 horsepower at the crankshaft and 375 ft-lbs of torque. It's ideal for trail driving, running larger mud tires, and moderate off-road use.

Key Features

• Master overhaul kit with new steels, gaskets, seals, and O-rings
• Raybestos high-energy friction clutches for improved durability
• Wide carbon fiber 2-4 band to reduce friction wear and increase holding power
• The TransGo recalibration shift kit is designed for extreme-duty towing
• New valve body separator plate for improved shift performance
• Corvette servo for maximum clamping force and firmer shifts
• High-capacity 10-vane pump assembly with new vanes and hardened rings
• Hardened sun shell for increased strength and reliability
• Heavy-duty four-pinion steel planetary gear set for demanding applications

The custom-built 12-inch high-performance torque converter stalls at 1600 to 1800 RPM.

Level 3 – 450 HP, 425 lb-ft torque

Level 3 steps up to 450 horsepower and 425 ft-lbs of torque, built for extreme duty towing packages and serious trail use. When you're searching for a 4x4 700R4 transmission for sale that handles towing and tough trails, this is your level.

Level 3 keeps the TransGo recalibration shift kit but calibrates it for 450 HP. You get a heavy-duty hardened sun shell and upgrade to a 12-inch lock-up billet Yank performance converter with a wider stall range of 1600 to 2200 RPM for towing. The build includes extra capacity in the 3-4 clutch drum assembly, a vacuum lock-up system, a new TV cable, a transmission mount, a universal torque converter cover, and a dipstick with tube.

Level 4 – 500 HP, 475 lb-ft torque

Level 4 handles 500 horsepower with racing-grade components and heavy-duty case reinforcement for serious off-road performance.

It features upgraded racing frictions, a heavy-duty shift kit with Shift Command, billet pump gears, a reinforced input drum, and a five-pinion planetary gear set for added durability. An 11-inch or 12-inch billet Yank lock-up torque converter with a 1800–2600 RPM stall range helps deliver reliable performance on and off the trail.

Level 5 Pro Series – 600 HP, 575 lb-ft torque

Level 5 is Gearstar's Pro Series build for extreme rock crawling and high-horsepower 4x4 applications. Rated for up to 600 HP and 575 lb-ft of torque, it includes a reinforced transmission case, Smart Tech drum, billet super 2nd gear, billet pump gears, five-pinion planetary gear set, and racing-grade friction materials for maximum durability in severe off-road conditions.

When you search for a 700R4 transmission for sale, at the highest performance level, this is what you get.

Key Specifications of All Levels

• First gear ratio: 3.06:1
• Second gear ratio: 1.62:1
• Third gear ratio: 1.00:1
• Fourth gear (overdrive) ratio: 0.70:1
• Overall transmission length: 32 inches
• Distance to transmission mount center: 24 1/4 inches
• Vacuum lock-up system
• New TV cable
• New transmission mount
• Universal torque converter cover
• Dipstick and tube
• New OEM-style steel transmission pan
• New speedometer drive gear and driven gear

Compatible Vehicles for 700R4 4x4 Transmission

The 700R4 4x4 transmission was used in GM trucks, SUVs, and off-road vehicles. It is a popular choice for restorations, off-road builds, and performance upgrades.

• Chevrolet Blazer (1982–1991)
• Chevrolet Suburban (1984–1992)
• GMC Jimmy (1982–1993)
• Chevrolet S10 Pickup (1989–1991)
• GMC S10 Pickup (1989–1991)

Why Choose a Gearstar 700R4 4x4 Transmission?

• Custom-built to order
• Built by one master technician
• Dyno-tested before shipping
• Performance-calibrated for your application
• Designed for off-road, towing, and performance use

Buy a Custom-Built 700R4 4x4 Transmission

If you're building an off-road truck, trail rig, mud vehicle, or performance 4x4, Gearstar's 700R4 4x4 transmission delivers the durability, overdrive performance, and reliability you need. Contact Gearstar today to discuss your application and find the right build level for your vehicle.